Vapor burner



` May 6, 1930. v. DE'rwILER 1,757,295

VAPOR,BURNER Filed June 3, 1927 4 Sheets-Sheet 2 l lf3 WL as' Oo f JLU@ May 6, 1930.

F. v. DETWILE VAPOR BURNER 4 Sheets-Sheet I5 Filed June I5, 1927 F. v. IDETWILERY.

VAPOR BURNER May 6, 1930.

4 sheets-sheet 4 Filed June 3, 1927 Patented May 6 1930 U 1 ETEI'.)` STATES FOREST V. DETWILER, OF GRAND RAPIDS, MICHIGAN VAPOR BURNER Application filed. .Tune 3, 1927.

This invention relates to improvements in vapor burners particularly adaptedthough not necessarily limited in its use in heating furnaces, stoves and the like, and on-e of the objects of the invention is to provide an im-` proved construction and arrangement of parts whereby thefuel will be quickly vaporized and at the Sametime the objectionable featuresof lcarbonization will be elimili, nated. y

A further object is to provide in an improved burner of this character means 'whereby air channels will be provided for supplying air currents to the flame.

`A furtherobject is to provide an improved burner of this character having an elongated fuel chamber provided with vapor or burner openings arranged throughout the length thereof and improved means whereby the flame that is remote from the source of supply of fuel will be substantially equal to the flame which is adjacent the source of fuel supply.

A further object is to provide an improved burner of this character which will be of a Y simple, durable `and compactconstruction and effective and efhcient in operation.

To the attainment of these ends and the accomplishmentof other new anduseful ob- 39 jects as will appear, the inventionconsists in the features of novelty in substantially the construction, combinationiand arrangement of the several parts hereinafter `more fully described and claimed and shown in the accompanying drawings illustrating this invention, i and in" which Figure 1 is a top plan view of a `burner constructed in accordance with the `principles of 4Q this invention. y i.

Figure 2 is a side elevation of Figure 1.

Figure 3 isa vertical, sectional view taken on line 33, Figure 1, and withparts omitted.

Figure l isa. vertical sectional View taken on .line 1 /i, Figure 1, y and with parts omitted.` y

Figure 5 is a horizontal sectional view taken ion line 5-,5, `Figure 2. i

Figure `dis `a `detail sectional view taken on line 6-6, Figure 4L.`

Serial No. 196,222.

Figure 7 is a detail sectional view talcen on line 7 7, Figure l.

Figure 8 is a top plan view of the supple mental initial heat tray or trough,

As shown in the drawings the burner consists of an elongated hollow body portion 10, which may be of any desired length and diameter and is provided with a plurality of chambered eXtensi ons 11 projecting from the periphery thereof. These extensions 11 are provided with burner slots 12 and extending through the body portion is a tubular member 13.` This member 13 is open at its ends and is secured in position within the body portion 10 by means of nuts or collars 11i. The outer diameter of the tubular member 13 is considerably less than the interior diameter of the body portion 10 so as to permit fuel which passes into the body portion through an opening 15 to flow about the member 13 'to pass out of the burner openings 12.

A tubular element 16 is connected with the body portion 10 to form a mixing chamber, the bottom of which is inclined downwardly and terminates in a lip 17, which latter is disposed over a recess or well 18, and leading from this well 18 is a drip or drain pipe 19, so that any of `the fuel which accumulates within the mixing chamber 16 will be drained therefrom. 80

Projecting from the body portion 10 are `branches 20 which are alsotubular and are provided with extension chambers 21-22, having' burner slots 23H24 therein, and interposed between the body portion 10 and the extensions 2() are flanges 25-26 to form seats 27, for a purpose to `be hereinafter set forth.

vWithin the extensions 2() are arranged tubular members 28, the outer ends of which are supported in any suitable manner by the `end walls of the extension and the members `28 are secured in position by means of su1table nuts or collars 29. The outer ends of the members 28 are closed by means of suitable plugs 30 and the inner ends of the tubular members extend into the body portion 10 and terminate in close proximity to the tubular member 13, but are slightly spaced from the member 13. The inner extremities of the members 28 are beveled or inclined as at 31 so as to form battles or obstructions to the vapor which is flowing into the vburner from the mixing chamber 16 and through the opening 15.

The tubular members 28 are provided with openings 32 so that the vapor which flows v'into the tubular members 28 by being desult that the fuel which is'directed -by the inclinedends or babies 31 of the members 28 intothe members 28, will be supplied to all of the burner openings of the respective branch section, and with the further result that the flame at the openings 23 will be of substantially the same pressure and size as the flame at the openings 24.

The tubular member 13, through the body portion, permits outside air to circulate through the burner so as to cool the burner chamber and thereby prevent the burner ychamber from getting too hot.

The extensions on thebody .portion and branches 20 which are provided with the burner openings are spaced from each other in directions lengthwise respectively of the chamber and extension so as to form air passages 33 and 34, the, extensions andburner openings therein on'the arms of the body portion and of the branches being so arranged that the flames will be directed toward the respective adjacent faces of the body and the extensions. rllhese air channels permit currents of air to be lsupplied between the flames which are directed from the Vburner openings so that a proper combustionA and high heat will be produced.

lFuel isfsupplied to the burner from 'a suitable sourcecontrolled by a valve 35 and is ,conveyed through a casing 36 controlled by ali-automatically operating valve 37 to a pipe 38 and is delivered from the pipe 38 to a coupling 39 provided with a valve 40 adapted to be to permit a predetermined supply of fuel to pass therethrough. Connected with the coupling 39 is a vaporizing pipe 41 which is arranged at one side of the burner and inelines upwardly toward the other side of the burner. The pipe 41' is then bentupwardly as at 42 to form an upwardly extending portion 43 and this upwardly extending portion engages and rests within the seat 27 adjacent the flange 25 of the extension'or branch 20. From the bend 42 the secti'on'43 of the opposite end of the body portion 10 and is menace then bent downwardly as at 44 and is connected with a needle valve casing 45 having a needle valve 46 which controls the discharge outlet 47 of the needle valve casing. The discharge outlet 47 of the needle valve casing is located in alinement with the inlet of the mixing chamber 16 so that when the needle valve 46 is adjusted to open the outlet 47 va por will be discharged into the mixing chamber and will entrain with it air through the open end of 'the mixing chamber 16, the mixture being delivered into 'the burner through the opening 15.

Arranged beneath the portion 43 of the vaporizing pipe 41 is a trough or receptacle 48, and this trough is also shaped so as to extend under the branches 20 of the burner as wshown nore clearly in Figure 1,'to serve as a means for initially heating the burner. Fuel is supplied to the trough 48 through a suitable pipe 49, having a receiving cup 50 at the upper end thereof closed by means of a suitable cap or closure 51.

A portion of the trough 48 beneath the mixing chamber 16 and which is located comparatively close to the inlet of the mixing chamber 16, is provided with an upwardly projecting flange 52 along one edge thereof and which flange terminates in'close proximity to the lower surface of the wall of the 9 mixing chamber 16. ln the absence of this flange 52 it will be manifest that when the vapor is injected into the open end of the mixing chamber 16 there would be a tendency to draw the Haine from the pre-heater into the inlet of the mixing chamber, but bythe provision of the flange 52 the llame will be prevented frombeing drawninto theI mixing chamber by such injection of the fuel.

Any unvaporized fuel whichis carried into the mixing chamber from the injector nozzles 47 ork which may form within the mixing lchamber 16 will be directed, by reason of the inclined position of the mixing chamber into the drain pipe 19, and by rea-son of the upwardly inclined sections 41and 43 of the vaporizing pipe any liquid accumulated therein will immediately flow out of the Vaporizing pipe and the formation ofV carbon in the vvaporizing pipe will be avoided.

The entire structure is mounted upon a base 573, having a tubular upright portion 54 into which a stem 55 carried by the burner telescopes. A collar 56 is connected with the stem 55 and limits the telescoping movement of the stem with the upright 54.

A shield 57 may be provided and supported in any suitable manner by the upright 54 beneath the burner and the shield is of such a size and shape as to protect the burner and operates to keep cold air from striking the lower surfaces of the burner, and which cold air would have a tendency to cool the burner.

The section43 of the vaporizing pipewhen seated in the recess or seat 27 will be disposed inlet.

below the upper surfaces of the burner `and will be maintained in a position where the iiame from some of the burner openings l2 in the extensions 1l will be directed there-` against, as shown more clearly in Figure 2, inasmuch as this section of the pipe 43 will` extend across the burner openings 12.

If desired an additional pre-lieating trough 58 may be provided and is adapted to be removably placed beneath a portion of the section 43 of the vaporizing pipe adjacent one end of the body 10. This trough 58 may be provided with supporting feet 59 (see Figure 2) adapted to engage and rest upon a. suitable part of the structure and'the tray member may also be provided with a bifurcated portion 60 adapted to receive a portion of the pipe 44. l

While the preferred form of the invention has been herein shown and described, it isto be understood that various changes may be made in the details of construction and in the combination and arrangement of the several parts, within the scope of the claims, without departing from the spirit of this invention.

What is claimed as new is l. A burner including a tubular head of substantially straight bore and having an inlet for the fuel, and hollow raised portions on `the head, there being a plurality of slits within each of said portions for the escape of fuel, said portions being spaced from each other in directions lengthwise of the head to form air passages therebetween, the slits in said portions remote from said inlet being narrower than the slits in said portions adjacent said V 2. A burner including a tubular head of substantially straight bore and having an inlet for the fuel, and hollow raised portions on the head, there 'being a plurality of slits within each of said portions for the escape of fuel, `said portions being spaced from each other in directions lengthwise of and circumferentially about the head to form air passages therebetween extending lengthwise of and about said head, the slits in said portions remote `from said inlet being narrower than the slits in said portions adjacent said inlet.

3. A burner including a tubular head of substantially straight bore,1hollow raised por tions on the head, and means for supplying fuel vapor into thehead at apoint intermediate the ends 'of the head, there being a plurality of slits within eachof'said raised portions, the slits in the saidportions which are remote from the fuel inlet of the head being 4narrower than the slits in the said raised portions which are iii closer proximity to the fuel inlet.`

4. A burner including a tubular elongated head, hollow raised portions on the head, there being slits in said portions for the escape of fuel, a fuel vapor inlet intermediate the ends of said head, and tubular members within` the head of a considerably smaller` the `tubular members terminating short of each other adjacent the said inlet and within the path of incoming fuel, the last said ends of the tubular members being beveled or inclined downwardly to form liaiiles to direct the fuel intothe respective tubular members.

5. A burner including a `tubular elongated head, hollow raised portions on the head, there being slits in said portions for the escape of fuel, a fuel vapor inlet intermediate the ends of said head, and tubular members within the head of a considerably smaller diameter and provided with apertures through their walls, one end of said tubular member being closed, the proximate ends of the tubu lar members terminating short of each other adjacent the said inlet and within the path of incoming fuel, the last said ends of the tubular members being beveled or inclined downwardly to form baflies to direct the fuel intothe respective tubular members, the slits in the said raised portions remote from said fuel inlet being smaller than the slits in said raised portions that are closer to the said inlet.

G. A burner including an elongated tubular head, tubular elongated branches extending from and communicating with the head, hollow raised portions on the head and branches, slits in said raised portions for the escape of fuel, some of the slits in one portion of the burner being directed towards some of the slits in proximate adjacent portions on other parts of the burner, an open tubular member of a considerably smaller i diameter extending through said head, tubular members of considerably smaller diameter disposed within said branches, the outer ends of the last said members being closed,

the inner ends of the last said tubular mem- `2,1

bers terminating short of vand adjacent the lirst said tubular member, the last said ends being beveled or inclined downwardly to form baffles for directing fuel into the second recited tubular members, there being apil:

ertures in the wall of the last said tubular members, and means for supplying vapor lfuel into the burner adjacent the said beveled ends of the tubular members.

7. A burner including an elongated tubular head, tubular elongated branches extending from and communicating with the head. hollow raised portions on the head and branches, slits in saidraised portions for the escape of fuel, some of the slits on one portion of the burner being directed towards some of the slits in proximate adjacent portions on other parts of theburner, an open tubular member ofa considerably smaller diameter extending through said head, tubular'members of considerably smaller diameter disposed Ywithinsaid branches, the outer ends of the last said membersibeing closed, the inner ends of the last said tubular members terminating short of and adjacent the first said tubular member, the last said ends being beveled or inclined downwardly to form baiiies forV directing fuel into the second recitedtubular members, there being aper-Vv tures'in the wall of the last said tubular members, and means for supplying vapor fuel into the' burner adjacent the said beveled ends of the tubular members, the slits in the saidl raised portions of said branches remote from said beveledl endsv being smaller in size than the slits in the said raised portion of the branches adjacent said beveled ends. y

8.'A burner including ahollow head, said head embodying elongated radially disposed tubularsections, saidy sections being arranged in -oppositely disposed and alined pairs, hollow raised portions ony said sections, slits in said raised portions for escape of fuel, said portions being yspaced lengthwise of and about the respective sections to form air passages therebetween, an imperforate open tubular member extending through one pair of alined sections and of a diameter consider- 'ably less than the diameter of said sections, perforated tubular members individual to the sections of another pair and of a diameter considerably less than the. diametersV of the respective sections, the outer ends of the last said tubular members being closed, the inner ends of the last tubular members terminating short of each other and of the first said tubular member and being beveled or inclined downwardly to form baiiies to direct the fuel ythereinto, and means for supplying vapor to the burner adjacent said beveled ends. Y. 9. A burner includinga hollow head, said head embodying elongated radiallydisposed tubular sections, said sections being arranged in oppositely disposed and alined pairs, hollow raised portions lon said sections, slits in saidiraised portions for escape ofv fuel, said portions being spaced lengthwise' of and about the respective sections to vform air passages therebetween, an imperforate open tubular member extending through one pair vof alined sectionsand Vof a diameter considerably less than the diameter of said sections, perforated tubular members individual to the sections of another pair and of a'diameter considerably lessk than the diameters of the respective sections, the outer endsof the last said tubular Vmembersr being closed, the inner ends of the last said tubular lmembers terminating short of each other and' of the first said tubular member and being beveled or inclined downwardly to form bafiies todirect the fuel thereinto, andl means for supn plying 'vapor to the burner adjacent said beveled ends, the slits in the raisedportion of the sections'at the outer ends of the pair containing said perforated tubular members being smaller than the slits in the raised portions of the last said pairl adjacent the fuel inlet of the burner.

10. A. burner including an elongated tubular body portion having openings in its wall for escape of fuel, said openings being spaced in directions lengthwiseof said body portion, a tubular member within said body and closed at one end, said tubular member being of a diameter considerably less than the interior diameter of said body and having openings therein for the' escape of fuel into the said body, and means for delivering fuel into the body adjacent the open end of said tubular member, the last said end of the tubular member being shaped to form a bafiie or deflector extending in a direction across the inlet opening of the said body, for directing a portion ofthe fuel intothe tubular' member'. Y

, 11. A burner including an elongated tubular body portion having openings in itswall for escape of fuel, said openings being spaced in directions lengthwise of saidbody portio'n, a tubular member within said body and closed at one end, said tubular member being of a diameter considerably less than the interior diameter' of said body and having openings therein for the escape of fuel into the said body, and means for delivering fuel into-the body adjacent the open end of said tubular member, the last said end of the tubular ymember being shaped to form a baii'ie or defiector extendingin a direction across the inlet of said body fordirecting a porti-on of the fuel into the'tubular member, the said fuel openings in the said body which are remote from the fuel inlet end being smaller than the fuel openings adjacent the said fuel inlet. f v

l2. Avburner embodying a body porti-on comprising radially arranged hollow elongated portions having slits therein for the escape of fuel, a mixing chamber' for supplying fuel thereto, a vaporizing pipe having its inlet and outlet adjacent the same end of one of said portions, saidpipe inclining upwardly from its inlet to a point in proximity to its outlet, said outlet dischargingV into the mixing chamber, a portion of said vaporizing pipe being disposed in close proximity to and lextending along one side of diametricallyV opposite portions of the burner, anotherl of the said 'portions of the burner having an openv recess for receiving a portion ofthe vaporizing pipe.

13. A burner embodying a-,body portion comprising radially' arranged hollow elongated portions having slits therein for the escape of fuel, a mixing chamber for supplying fuel thereto, a vaporizing pipe having its inlet and outlet adjacent the sameend of one of said portions, said pipe inclining upwardly from its inlet to'a point in proximity to its outlet, said outlet discharging into the mixing chamber, a portion of seid Vaporizing pipe being` disposed in close proximity to and extending along one side of diametricelly opposite said portions of the burner, another of the said portions of the burner having an open recess for receiving e portion of Jdie vaporizingpipe, the said portion of the Vaporizng` pipe being disposed below the plane of the upper surface of the burner.

In testimony whereof I have signed my name to this specification on this 1st day of June, A. D. 1927.

FOREST V. DETWILER. 

